Those buying Wii Fit today will find it includes one function never seen in Japanese previews - the ability to weigh your own pet.
Wii Fit users merely need to jump on the balance board with their respective animal, and then weigh themselves separately. In a stroke of a mathematical genius, the 'game' will subtract one from the other and tell you how much your pet weighs
Speaking to Newsweek, Nintendo main man Shigeru Miyamoto said that he wanted to include the mode in the Japanese version, but wasn't able to fit it in.
Wii Fit is out today for the sum of £69.99, in case you somehow avoided the mass of adverts posted everywhere.